Radiator



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'UNITED srATEs PATENT oEEioE.

.FRANK WV. MERRITT, GF DULU'IH, MINNESTA, IASSIGNOR TO HOLBROOK W.COULTER, TRUSTEE, 0F DULUTH, MINNESOTA.

RADIATOR.

Specification of Letters Patent.

Patented Jan. 6, 1920.

Application led September 23. 1918. Serial No. 255.282.

To all whom t may concern:

Be it known that I, FRANK WV. MERRITT, a citizen of the United States,residing at Duluth, in the county of St. Louis and State of Minnesota,have invented certain new and useful Improvements in Radiators, of whichI do hereby declare the following to be a specification.

My invention relates to radiators and has for its object the provisionof a radiator of improved structure, of the water circulation type, forautomobiles, or other purposes. One of the objects of my invention is toprovide a removable unit or section of improved structure, adapted incoperation with similar units or sections to form part of a sectionalradiation column embodied in such radiator. With these and otherobconsists of the structures, combinations and arrangements of partshereinafter described and claimed.

In the drawings, Figure 1 is a top plan view of one of the hereinafterdescribed units or sections embodied in my said invention. Fig. 2 isa'section of two of said units on the line A-B of Fig. l. Fig. 3 is asection of two of said units on the line C-D of Fig. l. Fig. 4 is a planview of a hereinafter described baille plate forming part of one of saidunits. Fig. 5 is an end view of said baille plate. Fig. 6 is a frontelevation of a radiator' embodying my invention, partly in section onsaid line C-D of Fig. 1, and partly broken away.

In the drawings, l is a header member or upper circulation chamber; 2 isa base member or lower circulation chamber; 3, 3 are side walls securedat their upper ends to said header and at their lower ends to said base;said side walls preferably containing circulation chambers 3a adapted tocommunicate with the circulation chambers in said header and base,respectively. If desired the circulation chambers in said side walls maybe omitted. Extending between said header and base are any suitablenumber of sectional radiation columns, each in cluding a series ofremovable radiation units, each of which units consists of a broad thinhollow chamber 4 open at one end and a baffle plate 5 of slightly lessarea than said chamber and adapted to extend thereinto. Said bailleplate is spaced from the walls of said chamber and has formed on one ofits-ends a shoulder 5a adapted to close the open end of said chamber 4;it also preferably has formed on said shoulder a crown portion 5badapted to extend across the adjacent end wall of said chamber 4.

Gn the outer surface of one of the broad walls of each such unit 4 isformed a taper bored or female nipple 4a, the bore of which communicateswith the interior of said chamber at one side of said baille plate. Theother of the broad walls of each such unit 4 has formed thereon anapertured externally tapered, or male nipple 4b, the aperture in whichis adapted to communicate with said chamber 4 at one side of said bailleplate. The taper bored nipple of any of said units is adapted to engagethe externally tapered nipple of another of such units in building acolumn of such units. Said base or lower circulation chamber has formedin its upper wall an aperture 2a adapted to engage the lower terminalnipple of a column of such units. Said header has formed in its floor athreaded aperture adapted to engage an apertured adjustable nipple 6which is adapted at one end to engage the upper terminal nipple of acolumn of said units. Mounted on said adjustable nipple intermediate ofthe ends thereof is a jam nut 6a adapted to be set against the lowerface of the iioor of said header after said adjustable nipple has beenscrewed home. Said adjustable nipple is employed to press the units ofsaid column into close engagement; it will be noted that there may beslight variances between the heights of the columns which will becompensated by the adjustable nipples, thus preventing leakage from theshorter columns. Said adjustable nipple may be retracted by firstretracting the jam nut and then unscrewing the nipple by means of anysuitable instrument introduced through an aperture la formed in theupper wall of said header. If desired the aperture in any suchadjustable nipple may be plugged by any suitable plug (not shown), whichmay be introduced through said aperture la, thus cutting off thecirculation be tween the corresponding column and said header. Ifdesired to remove one of the units from said Column, the correspondingadjustable nipple is first retracted and the column may then be priedapart on each side of the unit to be removed; the desired unit may thenbe removed and another substituted and the adjustable .nipple may then-be restored to operative position. To avoid danger of collapsing thewalls of said chamber 4 by the' compression exerted by said adjustablenipple, there is formed on each side of said bafiie plate one or morelugs 5 adapted to narrowly limit any convergence of the upper wall ofthe unit toward the vlower wall thereof, and to divide the collapsingstrains between said upper and lower walls. Said base is preferablyapertured in its floor as at 2b in alinement with said nipples, and, ifdesired, the lower end of any of said columns may be plugged by anysuitable plug (not shown), introduced through the corresponding aperture2", whereby circulation between such column and such base chamber may becut off. Said apertures 1a and 2 are normally closed by any suitableplugs, as lb and 2L14 respectively.

Said radiator may be connected with the water jacket of a gas engine(not shown) or with any suitable reservoir by means of ports -1c and 2formed in said header and base respectively and shown in broken lines.

Saidchambers 4 and baffle plates 5 are preferably formed separately bydie casting. In order to secure a tight fit between the shoulder 5a ofsaid baffie plate and the adjoining walls of the chamber 4, a thinshallow flange 5d is cast on said shoulder, which iange is crushed orspun when said shoulder is forced into said chamber, the material ofsaid flange thus effectually calking the joint. lf desired, said flangemay be formed upon the inner face of the walls of said chamber adjacentto said shoulder instead of upon said shoulder.

It is obvious that my invention may be modied in various details withinthe scope and spirit of certain of my claims.

1. In a radiator, the combination of two circulation chambers spacedfrom each other, a series of circulation units interposed between saidchambers, one of the terminal units of said series engaging andcommunicating with one of said chambers, an adjustable nipple mounted inthe other of said chambers and engaging the opposite terminal of saidseries, said series and adjustable nipple being adapted to conductliquid from one of said chambers to the other, each of said units beingremovably engaged with another of said units.

2. A radiation unit comprising .a broad thin hollow chamber open at oneend, said chamber having a taper bored nipple formed on the outer faceof one of its broad walls, the bore of said nipple extending throughsaid wall, said chamber having an externally tapered nipple formed onthe outer face of its opposite broad wall, said externally taperednipple having a central aperture formed therein communicating with saidchamber, a baiiie plate extending into said chamber, said baffle platebeing spaced from the broad wallsand from one of the narrow walls ofsaid chamber, said baffle plate having a shoulder formed thereon adaptedto close the open end of said chamber.

3. A baffle plate comprising a thin broad body portion, a shoulderportion at one end of said body portion and a thin shallow flangeencircling said shoulder portion intermediate of its ends and in thedirection of its greatest diameter.

4. A baiiie plate comprising al thin broad body portion, a shoulderportion at one end of said body portion and extending from four sidesthereof, and a thin shallow flange encircling said shoulder in thedirection of its greater diameter, said flange 'being positionedinwardly of the outer end of said shoulder.

5. A baiiie plate comprising a thin broad body portion, a shoulderportion at one end of said body portion, and spacing lugs found upon thebroad sides of said body portion.

6. A radiator unit comprising a broad thin chamber open at one end, abaille plate extending into said chamber and spaced from the broad sidesthereof, said baflie plate having a shoulder formed thereon at one endadapted to approximately close said open end of said chamber, Vsaidyshoulder having a thin shallow yielding iange formed thereonconstituting a calking element be* tween said shoulder and the adjacentwalls of said chamber, each of the broad walls of said chamber having aport formed therein.

7. A radiator comprising two circulation chambers spaced from eachother, a series of radiation units interposed between said chambers,each of said units being removably engaged with another of said series,

said series being adapted to conduct liquid,

a tubular adjustable nipple adapted to com` municate at one end with oneof the terminal ports of said'series and at the opposite end with one ofsaid chambers, said nipple being adapted at one end to bear against saidone of said chambers and at its opposite end to bear against theadjacent unit of said series, means for adjusting said nipple wherebyVsaid nipple is caused to thrust said units into close engagementwitheach other, each of said units having a bafiie plate therein spaced fromits broad walls, each of said baffle plates having transversely directedlugs formed thereon adapted to prevent the crushing of the broad wallsof the unit by the compression strain of said adjustablenipple, theopposite end of said series being adapted to bear upon and' communicatewith the other of said circulation chambers.

8. 1n a radiator, two circulation chambers spaced from each other, sidewalls extending from one to the other of said chambers, aV

lili

series of liquid conducting units interposed between said chambers, eachof said units being removably engaged with another of said units, saidseries communicating at one end with one of said chambers, a tubularadjustable nipple interposed between the opposite end of said series andthe other oi' said chambers, and a jam nut mounted upon said adjustablenipple, the construction be ing such that liquid may liow through saidseries and nipple from one to the other of said chambers.

9. In a radiator, the combination of an upper and lower chamber spacedfrom each other; side walls extending from the upper to the lowerchamber and containing liquid conducting chambers communicating withsaid upper and lower chambers; a liquid conducting column comprising aplurality of liquid conducting units containing ballie plates interposedbetween said upper and lower chambers, each of said units beingremovably engaged with another of said units, said column being shorterthan the space between said upper and lower chambers; a tubularadjustable nipple engaging said Column at one end and enga-ging one ofsaid Chambers at the opposite end, said nipple being' adapted to bearagainst the adjacent one of said units and to force said units intoclose relation to each other, the other end of said column being adaptedto Communicate with the 4opposite chamber.

In testimony whereof, I hereunto aix my signature, in presence of twowitnesses.

FRANK W. MERRITT.

Witnesses:

F. M. MCKAY, A. D. MEIER.

